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Journal Articles

Application of $$^{67}$$Cu produced by $$^{68}$$Zn($$n,n'p+d$$)$$^{67}$$Cu to biodistribution study in tumor-bearing mice

Sugo, Yumi*; Hashimoto, Kazuyuki*; Kawabata, Masako*; Saeki, Hideya*; Sato, Shunichi*; Tsukada, Kazuaki; Nagai, Yasuki*

Journal of the Physical Society of Japan, 86(2), p.023201_1 - 023201_3, 2017/02

https://doi.org/10.7566/JPSJ.86.023201
 Times Cited Count：14 Percentile：67.84(Physics, Multidisciplinary)

$$^{67}$$Cu produced by the $$^{68}$$Zn($$n,n'p+d$$)$$^{67}$$Cu reaction was used for the first time to determine the biodistribution of $$^{67}$$CuCl$$_{2}$$ in colorectal tumor-bearing mice. High uptake of $$^{67}$$Cu was observed in the tumor as well as in the liver and kidney which are the major organs for copper metabolism. The result showing $$^{67}$$Cu accumulation in the tumor suggests that $$^{67}$$CuCl$$_{2}$$ can be a potential radionuclide agent for cancer radiotherapy. It would also encourage further studies on the therapeutic effect in small animals using an increased dose of $$^{67}$$Cu produced by the $$^{68}$$Zn($$n,n'p+d$$)$$^{67}$$Cu reaction using intense neutrons available at present.

Oral presentation

Medical use radioisotope production with accelerator neutrons by deuterons

Tsukada, Kazuaki; Watanabe, Satoshi*; Ishioka, Noriko*; Hatsukawa, Yuichi*; Hashimoto, Kazuyuki*; Sugo, Yumi*; Sato, Nozomi*; Kin, Tadahiro*; Kawabata, Masako*; Saeki, Hideya*; et al.

no journal, , 

A new system has been proposed for the generation of radioisotopes with accelerator neutrons by deuterons, especially the production of Mo-99, Y-90, Cu-67, and Cu-64. Enriched Mo-100, Zr-90, Zn-68 and Zn-64 oxide samples were irradiated with neutrons, which were obtained by the $$^{nat}$$C(d,n) and Be(d,n) using 12 - 50 MeV deuterons provided from the TIARA cyclotron and the JAEA tandem accelerator. Mo-99, Y-90, Cu-67, and Cu-64 were successfully produced via the (n, x) reactions, and we clearly observed the $$gamma$$-rays. The present results demonstrate that the radioisotopes, Mo-99, Y-90, Cu-67, and Cu-64, can be produced by using fast neutrons, and strongly suggest that the reaction system is one of the most promising routes to produce high quality medical radioisotope.

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